Photodeterioration inhibitor, beverage comprising the same, and method for inhibiting photodeterioration

Abstract

Provided in the present invention is a photodeterioration inhibitor of pyrroloquinoline quinone and/or a salt thereof, comprising, as active ingredient(s), one or more colorants selected from the group consisting of tar colorant, carthamus yellow colorant, cochineal colorant, purple sweet potato colorant, red radish colorant, green colorant, gardenia blue colorant and caramel colorant.

1 . A photodeterioration inhibitor of pyrroloquinoline quinone and/or a salt thereof, comprising, as active ingredient(s), one or more colorants selected from the group consisting of a tar colorant, a carthamus yellow colorant, a cochineal colorant, a purple sweet potato colorant, a red radish colorant, a green colorant, a gardenia blue colorant and a caramel colorant. 
     
     
         2 . The photodeterioration inhibitor according to  claim 1 , wherein the salt of pyrroloquinoline quinone is a pyrroloquinoline quinone disodium salt. 
     
     
         3 . A composition comprising the photodeterioration inhibitor according to  claim 1 , and pyrroloquinoline quinone and/or a salt thereof. 
     
     
         4 . The composition according to  claim 3 , wherein the composition is in a form of food or drink. 
     
     
         5 . The composition according to  claim 4 , wherein the composition is in a form of drink. 
     
     
         6 . The composition according to  claim 5 , comprising the colorant(s) in an amount of from 0.1 to 1000 mg/L and pyrroloquinoline quinone and/or a salt thereof in an amount of from 1 mg/L to 100 mg/L. 
     
     
         7 . A method for inhibiting photodeterioration of pyrroloquinoline quinone and/or a salt thereof, the method comprising:
 bringing the photodeterioration inhibitor according to  claim 1  into contact with pyrroloquinoline quinone and/or the salt thereof.   
     
     
         8 . (canceled)